Fakulti Perhutanan : Laporan Rancangan Malaysia Keenam : Program Penyelidikan Disember 1989, MYUPM-UNIPERMA-13-417, Container: Gedung 1/56. MAIN ARCHIVES.

Fakulti Perhutanan : Laporan Rancangan Malaysia Keenam : Program Penyelidikan Disember 1989, MYUPM-UNIPERMA-13-417, Container: Gedung 1/56. MAIN ARCHIVES. http://putraarchives.upm.edu.my:8081/repositories/2/resources/1124 Accessed March 14, 2025.